Manifold heat-regulator.



E. W. & T. FIRNER. MANIFOLD HEAT REGULATOR.

APPLICATION FILED JAN. 8. I918.

Patented Jan. 14, 1919.

a sectional view on the line 11 in Fig.

manifold embodying our invention.

warren e earner eerie.

EDMUND Vii. FIRNER AND THEODORE FIRNER, OF RIVER FALLS, WISCQNSIN.

MANIFOLD HEATJREGULATOR.

and the main object to provide a highly.

efficient and regulahlcdevice of said kind, and thereby economize on thegasolene or other fuel from which the fuel is produced. In theaccompanying drawing, Figure l is i 3 of the manifold of an explosiveengine. said. Fig. 2

is a longitudinal vertical section on the line in Figs. 3 and -1 Fig. 3is a left hand end elevation of what is shown in Fig. 1 with the top ofthe device intact and a fragment of the engine added. Fig. at is asection as on the line. in Fig. 2. of the complete device and a fragmentof the engine added. 1

Referring to the drawing by reference numerals, 5 designates the part ofa gasolene engine to which the intake manifold through its upper ports7, delivers fuel to the cylinders of the engine. said fuel being drawnthrough a lower port S'from the can bureter 9. The latter is surroundedby a jacket 10.

The fresh air is d awn into the carbureter through a passage 11 (see Fig. 2) and is thus partly heated by the adjacent gas exhaust tube 12. 12.And from said passage 12 some of the hot exhau t gas passes down througha duct 13 into the jacket 10 so as to heat the carburetor and thenescape from the jacket through an outlet 14 in same. 15 are the portsthrough which the. exhaust gas from the cylinders escapes into a seriesof valve chambers 16 (see Fig. 4). said chambers is provided with a port17 through which the gas may pass downward like the arrows 18 in Fig.4and reach the exhaust 12 by passing through an exhaust .n'ianifold 19which forms a jacket about the intake manifold (3], which latter is thusheated by the-exhaust gas. Each chamber 16 is also provided with alateral-port 20, which opensintoa horizontal. diverting tube or duct"21, whoselar'genend has a down-' Specification of Letters Patent.

' Each of- Patented Jan. 14, 1919.

Application filed January 8. 1918. Serial No. 210.818.

ward extension 21 --2icommunicating with the final exhaust tube 12.

Journaled in bearings 25 along the base of the tube is a rock shafthaving at one end a rocker arm 26 adapted to spring into either one ofseveral notches in a notched segment 27, which is fixed on any adjacentstationary part/ On said rock shaft is fixed a series of wings or valves28. each of which, in the present drawing, is shown as extending fromthe shaft into the valve chamber through the port 20 and arranged toclose alternately the port 17 or the port 20 of the valve chambers 16,or the "valve may 00- cupy an inclined position in the chamber, so

that when the hot gas is-thus more or less diverted from the jacket 19to the tube 21 it. is thereby also diverted from and 13 so as to reducethe heat .in tube 1.1 and in the carburetor and itsjacke't 10. And thatthis regulation of heat of said parts saves all the fuel that. is wastedwhen the intake manifold and carbureter are allowed to deliver eithertoo cold or too hot gas into the explosion chambers.

This invention is especiall applicable to engincsof automobiles and autotrucks. but is also applicable to explosive engines in general.

that we claim is v In a device of the class described. an intakemanifold arranged to deliver fuel into the combustion chambers of anexplosive eugine. an exhaust manifold spaced as a jacket about theintake manifold and having a series of valve chambers forming passagesarranged to receive the exhaust gas from the engine and a final exhaustoutlet for said gas, a diverting tube extending along all the valvechambers and having one end directed into the final exhaust outlet. eachvalve chamber having three ports, one-port arranged to receive the hotexhai gas from the'engine, the second port to adn 1 said gasthe tubes I2into the outlet manifold and the third port positibn, and a'cjii-rbureter furnishing gas to admit more or less of said gas into thedito the intake manifeld,

verting tube, a series of valves so arranged In testimony whereof Weaffix 0111 signa- 0 one in each valve chamber that it may close tures.

more or less either the second or third port of the chamber, and meansfor setting all EDMUND W. FIRNER.

of said valves simultaneously in any desired THEODORE FIRNER.

